DC2199A-B - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
REV
__
DESCRIPTION
APPROVED
PRODUCTION
DAVID B.
3
DATE
2-26-15
R10
C55
1nF
C113
33nF
R150
14.3K
R139
26.7K
5
C66
47nF
200V
1206
AG1
C102
0.1uF
0805
Q29
IRF6217
B
R140
274
1/8W
0805
3
R109
10K
AS
C119
1nF
2
1
D30
ZHCS506
Q31
OPT
RUN
C73
1nF
24VOUT / 15A
+ C68
82uF
35V
OPT
7343
2
R123
86.6K
0805
C105
0
R122
0
R43
0
+VOUT
SGND
18
17
IS+
IS-
VSOUT
ITH
SGD
11
7
19
R125
17.4K
R115
4.42K
1/4W
1206
C74
0
12
VS+
13
VS-
R69
46.4K
C75
100pF
C
-SENSE
E6
OPT
ITH
+SENSE
E5
VS-
470pF
SYNC
R124
OPT
R126
OPT
IS+
3
28
21
NDRV
22
24
1
VCC
C78
33nF
R107
100
LTC3766EGN
SSS
R121
133K
OPT
-
E4
C70
R113
OPT
1206
VCC
C103
R116
VAUX
U2
RS+
R106
100
VCC
R112
0
-VOUT
-VOUT
VS+
Q27
FCX491A
FS/SYNC
PT-
+ C26
OPT
7343
0603
VCC
R138
OPT
VIN
R111
0
R118
681K
D34
ES1PD
4
3
C112
0.22uF
200V
1210 +VOUT
0
1
PT-
C76
3.3nF
R41
23.7K
R42
1K
6
FB
R119
OPT
R120
VCC
OPT
R68
2.15K
C79
4.7nF
C77
4.7uF
1206
PGND
R127
10K
1/4W
1206
C9
OPT
R46
604
B
COG
1
SGNDP
PT+
C23
C25
+ C7
OPT
7343
R7 RS0
R137
15
ND
R8
0
C80
1nF
26
C111
PGND OPT
MODE
4
28.7K
SGND
1uF
16V
0805
+ C31
OPT
7343
VPK
4
1T
C71
R147
OPT
IPK
1.25T
6
+ C33
C34
10uF
50V
1210
J4
10
T2
0603
VAUX
1
AG
AG1
R77
0
0805
SG
TRANS-PA3493NL
R103
0
C8
OPT
FG
R146
0
R114
+VOUT
J3
RUN
R6
OPT
PHASE
AG
PGND
5.11K 1206
25
AG
R75
2.61K
0805
5
4
AS
R117
12.7K
3M
1225
-VOUT
3
R101
100
4
PGND
IS+
IN-
DELAY
UV
R22
3.74K
C101 0.1uF
220pF 0805
16
R5
OPT
2512
+
321
R108
C30
2.2nF
7
8
2
PGND
GND
RCORE
1
SSFLT
9
11
GND2
C24
1uF
16V
0805
SGNDP
LTC3765EMSE
17
13
C72
15
U1
RUN
PSS
RS- R102 RS+
250V
1812
IN+
6
12
1N4148WS
VCC
FS/UV
3
2
10
D40
1
NDRV
E7
RUN
PG
4
14
3
VCP
321
Q15 FDMS86201
Q14 FDMS86201
Q24 OPT
SGND
-VIN
IS-
R18
102K
0805
C118
1.5nF
4
R52
OPT
1206
RS-
SGNDP
R149
100
ISMAG
C
R136
0.005
1225/2512
PGNDP
R148
100
R4
8.2K
2512
Q12 FDMS86201
Q13 FDMS86201
Q23 OPT
27
123
C10
2.2nF
630V
1206
FG
R51
OPT
1206
8765
2
1
6
5
2
1
3
R29
100K
0805
Q28
FDC2512
8765
C69
OPT
1206
C106
150pF
200V
D29
ZHCS506
CLAMP
FG
5678
Q8 BSC190N15NS3
Q9 BSC190N15NS3
Q11 OPT
D1
ES1PD
SWB
R53
6.8
1206
E3
+VOUT
L3
6.8uH
GND
ND
4
0
20 1206
14
FG
SGND
R76
OPT 0805
R49
VIN
1
12 13
D
-VOUT
SW
23
IS+
6 5
1206
R24
PGND
SW
1
4T
REGSD
3
4T
Q3
OPT
R9
OPT
D28
OPT
3
-VIN
R3
0
9 10
16
OPT
0805
D27
OPT
32
3
2
E2
R84
1
4
3
C5
4.7uF
100V
1210
C116
4.7uF
25V
1206
D38
BAS21
VSEC
C4
4.7uF
100V
1210
C3
4.7uF
100V
1210
R23
20
C51
330pF
630V
1206
SS
-VIN
C6
4.7uF
100V
1210
680uH
9
33uF
80V
VAUX
L4
N18513387
20
C2
4.7uF
100V
1210
+ C22
3
FGD/SWB
33uF
80V
D37
BAS21
1
1
2
3
+ C1
VA
RUN
36V-60VIN
R2
0
8
E1
T1
LTCP26-0404-S02
8
2T
14
2
3
L2
2.0uH
1
1
5
6
7
8
+VIN
T3
OPT
VIN
3
2512
2
1.0uH
0
2512
1
D
L1
R1
0.33
R110
1.20
1206
1/2W
ITH-
SGND
C11
15nF
R151
100
SGNDP
A
NOTE:
4.7uF 100V MURATA, GRM32ER72A475KE14 (X7R 1210)
4.7uF 25V AVX, 12063C475KAT2A (X7R 1206)
10uF 50V MURATA, GRM32ER61H106MA12 (1210 X5R)
2.2nF 250V Murata GA343QR7GD222KW01L (X7R 1812)
82uF 16V PANASONIC, 35SVPF82M
33uF 80V PANASONIC, EEHZA1K330P (10x12.5mm)
L1 Coilcraft XPL2010-102ML
L2 Vishay IHLP4040DZER2R0M11
L3 Coilcraft SER2915L-682KL
L4 Coiltronics SD25-681
Unless otherwise specified:
0.005 Ohm Susumu KRL6432D-M-R005-F-T5 (1225)
All resistors are in ohms 0603.
0.003 Ohm Susumu KRL6432D-M-R003-F-T5 (1225)
All capacitors are in microfarads 0603.
R110 SUSUMU, RL1632S-1R20-F (1206)
All capacitors are 25V.
T1 Champs, LTC-PQ26-0404-S02
1/16W = 0402, 1/10W = 0603, 1/8W = 0805,
T2 Pulse, PA3493NL
CUSTOMER NOTICE
1/4W = 1206, 1W = 2512.
5
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
4
3
2
TECHNOLOGY
LT
DAVID B.
TITLE: SCHEMATIC
SIZE
N/A
SCALE = NONE
DATE:
IC NO.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
ACTIVE CLAMP FORWARD CONVERTER
WITH DIRECT FLUX LIMIT
LTC3765EMSE / LTC3766EGN
DC2199A-B
Thursday, February 26, 2015
SHEET 1
1
REV.
3
OF 2
A
5
4
3
2
1
OPTIONAL CIRCUITS
D
D
J1
FG
R11
1.00K
R13
6.8
2512
RSQ1
7
2
5
C16
56pF
1
6
4
3
ZXGD3002E6
CLAMP
R14
6.8
2512
D2
OPT
R25
1
OPT
PSS
PSS
2
R34
3
OPT
R15
6.8
2512
4
5
C15
0.1uF
0805
6
Q4
FQD4P25
2
C14
0.1uF
R17
100K
1206
SGNDP
R19
1.5K
R26 OPT
SGND
SSS
SSS
7
R35 OPT
8
ITH
R27 OPT
VS+
R28 OPT
1
16
VDD
B1
VSS2
VSS
1
Q1
C20
0.1uF
VCC
15
4
A1
CRX
8
2
C13
10pF
RES
R12
4.99K
3
47pF
5
SO16
U3
HEF4528BT
SGNDP
C17
15nF
200V
1206
ACTIVE SNUBBER
VSS1
C12
SW
ITH
RSITHC
VS-
ITH-
R30 OPT
VS-
R31 OPT
VS+
9
10
11
PTSYNC
PT-
R32 OPT
SYNC
R33 OPT
12
13
14
1
2
3
4
5
6
7
8
9
10
C
11
12
13
14
OPT
HD2X7-MOLEX
AC DRIVER
VCCP
B
2
AG
AG
C18
OPT
PGNDP
5
PGNDP
1
6
4
PEAK CHARGE VCC
SW
C19
Q2
OPT
+VOUT
OPT
2
AG1
AG1
C21
OPT
0805
D4
1
VA
VPK
VA
2
D35
OPT
OPT
1
OPT
0805
3
C114
OPT
0805
PGND
PGNDP
A
CUSTOMER NOTICE
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
B
R152
4
3
2
TECHNOLOGY
LT
DAVID B.
TITLE: SCHEMATIC
SIZE
N/A
SCALE = NONE
DATE:
IC NO.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
ACTIVE CLAMP FORWARD CONVERTER
WITH DIRECT FLUX LIMIT
LTC3765EMSE / LTC3766EGN
DC2199A-B
Thursday, February 26, 2015
SHEET 2
1
REV.
3
OF 2
A
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